air condition INFINITI QX56 2011 Factory Service Manual

DAS-188
< DTC/CIRCUIT DIAGNOSIS >[DCA]
U150E BCM CAN 3
U150E BCM CAN 3
DTC LogicINFOID:0000000006228157
DTC DETECTION LOGIC
NOTE:
If DTC “U150E” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer \
to
DAS-182,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the DCA system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “U150E” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U150E” detected as the current malfunction?
YES >> Refer to DAS-188, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228158
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U150E” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK BCM SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “BCM”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
BCS-57, "
DTCIndex".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U150E (160) BCM CAN CIRC 3
ADAS control unit detects an error signal that is
received from BCM via CAN communication BCM
Revision: 2010 May2011 QX56

DAS
U1502 ICC SENSOR CAN COMM CIRCDAS-189
< DTC/CIRCUIT DIAGNOSIS > [DCA]
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U1502 ICC SENSOR CAN COMM CIRC
DTC LogicINFOID:0000000006228159
DTC DETECTION LOGIC
NOTE:
If DTC “U1502” is detected along with DTC “U 1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the DCA system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “U1502” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1502” detected as the current malfunction?
YES >> Refer to DAS-189, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228160
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U1502” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ICC SENSOR SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “LASER”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
CCS-55, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U1502 (147) ICC SEN CAN COMM
CIR ADAS control unit detects an error signal that is
received from ICC sensor via CAN communi-
cation
ICC sensor
Revision: 2010 May2011 QX56

DAS-190
< DTC/CIRCUIT DIAGNOSIS >[DCA]
U1513 METER CAN 3
U1513 METER CAN 3
DTC LogicINFOID:0000000006228161
DTC DETECTION LOGIC
NOTE:
If DTC “U1513” is detected along with DTC “U
1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the DCA system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “U1513” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1513” detected as the current malfunction?
YES >> Refer to DAS-190, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228162
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “U1513” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK COMBINATION METER SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “S elf Diagnostic Result” of “METER/M&A”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
MWI-43, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U1513 (163) METER CAN CIRC 3 ADAS control unit detects an error signal that is
received from combination meter via CAN
communication
Combination meter
Revision: 2010 May2011 QX56

DAS
U1514 STRG SEN CAN 3DAS-191
< DTC/CIRCUIT DIAGNOSIS > [DCA]
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U1514 STRG SEN CAN 3
DTC LogicINFOID:0000000006228163
DTC DETECTION LOGIC
NOTE:
If DTC “U1514” is detected along with DTC “U 1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the DCA system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “U1514” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1514” detected as the current malfunction?
YES >> Refer to DAS-191, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228164
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U1514” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ABS ACTUATOR AND ELECTRIC UNIT (C ONTROL UNIT) SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
BRC-51, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U1514 (165) STRG SEN CAN CIRC 3 ADAS control unit detects an error signal that is
received from steering angle sensor via CAN
communication
Steering angle sensor
Revision: 2010 May2011 QX56

DAS-192
< DTC/CIRCUIT DIAGNOSIS >[DCA]
U1515 ICC SENSOR CAN 3
U1515 ICC SENSOR CAN 3
DTC LogicINFOID:0000000006228165
DTC DETECTION LOGIC
NOTE:
If DTC “U1515” is detected along with DTC “U
1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the DCA system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “U1515” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1515” detected as the current malfunction?
YES >> Refer to DAS-192, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228166
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “U1515” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ICC SENSOR SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “S elf Diagnostic Result” of “LASER”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
CCS-55, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U1515 (165) ICC SENSOR CAN
CIRC 3 ADAS control unit detects an error signal that is
received from ICC sensor via CAN communi-
cation
ICC sensor
Revision: 2010 May2011 QX56

DAS
U1517 ACCELERATOR PEDAL ACTUATOR CAN 3DAS-193
< DTC/CIRCUIT DIAGNOSIS > [DCA]
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U1517 ACCELERATOR PEDAL ACTUATOR CAN 3
DTC LogicINFOID:0000000006228167
DTC DETECTION LOGIC
NOTE:
If DTC “U1517” is detected along with DTC “U 1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the DCA system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “U1517” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1517” detected as the current malfunction?
YES >> Refer to DAS-193, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228168
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “U1517” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ACCELERATOR PEDAL ACTU ATOR SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ACCELE PEDAL ACT”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-108, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U1517 (167) APA CAN CIRC 3 ADAS control unit detects an error signal that is
received from accelerator pedal actuator via
CAN communication
Accelerator pedal actuator
Revision: 2010 May2011 QX56

DAS-194
< DTC/CIRCUIT DIAGNOSIS >[DCA]
U1520 4WD CAN 3
U1520 4WD CAN 3
DTC LogicINFOID:0000000006228169
DTC DETECTION LOGIC
NOTE:
If DTC “U1520” is detected along with DTC “U
1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the DCA system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “U1520” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1520” detected as the current malfunction?
YES >> Refer to DAS-194, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228170
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “U1520” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK TRANSFER CONTROL UNI T SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “Self Diagnostic Result” of “ALL MODE AWD/4WD”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DLN-29, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
U1520 (176) 4WD CAN CIRC 3 ADAS control unit detects an error signal that is
received from transfer control unit via CAN
communication
Transfer control unit
Revision: 2010 May2011 QX56

DAS
POWER SUPPLY AND GROUND CIRCUITDAS-195
< DTC/CIRCUIT DIAGNOSIS > [DCA]
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POWER SUPPLY AND GROUND CIRCUIT
ADAS CONTROL UNIT
ADAS CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006223648
1.CHECK ADAS CONTROL UNIT POWER SUPPLY CIRCUIT
Check voltage between ADAS contro l unit harness connector and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair the ADAS control unit power supply circuit.
2.CHECK ADAS CONTROL UNIT GROUND CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect the ADAS control unit connector.
3. Check for continuity between ADAS control unit harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair the ADAS control unit ground circuit.
ACCELERATOR PEDAL ACTUATOR
ACCELERATOR PEDAL ACTUATOR : Diagnosis ProcedureINFOID:0000000006223649
1.CHECK FUSES
Check if any of the following fuses are blown:
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace the blown fuse after repairing the affected circuit if a fuse is blown.
2.CHECK ACCELERATOR PEDAL ACTUATOR POWER SUPPLY CIRCUIT
Check voltage between accelerator pedal actuator harness connector and ground.
Te r m i n a l Condition
Vo l ta g e
(Approx.)
(+) (–)
ADAS control unit
GroundIgnition
switch
Connector Terminal
B61 16 OFF 0 V
ON Battery volt-
age
ADAS control unit
GroundContinuity
Connector Terminal
B61 6 Existed
Signal name Fuse No.
Battery power supply 33
Revision: 2010 May2011 QX56

DAS-196
< DTC/CIRCUIT DIAGNOSIS >[DCA]
POWER SUPPLY AND GROUND CIRCUIT
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair the accelerator pedal actuator power supply circuit.
3.CHECK ACCELERATOR PEDAL ACTUATOR GROUND CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect the accelerator pedal actuator connector.
3. Check for continuity between accelerator pedal actuator harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair the accelerator pedal actuator ground circuit.
Te r m i n a l Condition
Voltag e
(Approx.)
(+) (–)
Accelerator pedal actuator
GroundIgnition
switch
Connector Terminal
E66 1OFF
Battery volt-
age
3ON
Accelerator pedal actuator
GroundContinuity
Connector Terminal
E66 2 Existed
Revision: 2010 May2011 QX56

DAS-200
< SYMPTOM DIAGNOSIS >[DCA]
DCA SYSTEM SETTINGS CANNOT BE TURNED ON/OFF ON THE NAVIGATION
SCREEN
DCA SYSTEM SETTINGS CANNOT BE TURNED ON/OFF ON THE NAVI-
GATION SCREEN
DescriptionINFOID:0000000006223653
 DCA system setting is not selectable on the navigation screen. NOTE:
When the ignition switch is in ACC posit ion, DCA system settings cannot be changed.
- “Distance Control Assist” is not indicated on the navigation screen.
- The switching between ON and OFF cannot be per formed by operating the navigation system.
- The item of “Distance Control Assist” on the navigation screen is not active.
 After turning ON the ignition switch or starting t he engine, DCA settings of the navigation system cannot be
selected for several tens of sec onds under the following conditions:
- After replacing AV control unit.
- After erasing connection histor y of the navigation system.
- After erasing self-diagnosis results.
 The DCA system setting differs from the one set at the previous driving. NOTE:
Turn OFF the ignition switch and wait for 5 seconds or more.
Diagnosis ProcedureINFOID:0000000006223654
1.CHECK DCA SYSTEM SETTING
1. Start the engine.
2. Check that the DCA syst em settings is selectable on the navigation screen.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.PERFORM THE SELF-DIAGNOSIS
1. Perform “All DTC Reading” with CONSULT-III.
2. Check if the DTC is detected in self-diagnosis results of “ICC/ADAS”, “MULTI AV” and “METER/M&A”.
Refer to the following.
- ICC/ADAS: DAS-100, "
DTC Index"
- MULTI AV: AV-57, "DTC Index"
- METER/M&A: WCS-30, "DTC Index"
Is any DTC detected?
YES >> Repair or replace malfunctioning parts.
NO >> INSPECTION END
3.CHECK DATA MONITOR OF ADAS CONTROL UNIT
Check that “DCA SELECT” operates normally in “D ATA MONITOR” of “ICC/ADAS” with CONSULT-III.
Is the inspection result normal?
YES >> Refer to AV-28, "On Board Diagnosis Function".
NO >> GO TO 4.
4.CHECK MULTIFUNCTION SWITCH
Operate the multifunction switch to check that the audio, navigation system, and air conditioner operate prop-
erly.
Is the inspection result normal?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> Repair or replace malfunctioning parts.
Revision: 2010 May2011 QX56